Karim Ahmed — Full Stack Developer

I Build Websites That
Scale & Make Sales

I've worked on 50+ websites, analyzing traffic, testing, and iterating until the numbers moved. Some hit thousands of daily visitors and hundreds of paying subscribers across multiple countries. I know what makes people buy, and I know how to build systems that hold up as that number grows.

5+Years exp

50+Projects

10+Technologies

100%Conversions focused

Next.jsReactTypeScriptNode.jsPostgreSQLTailwind CSSREST APIsWebSocketsPythonDjangoRedisSQLKVS3R2DockerNext.jsReactTypeScriptNode.jsPostgreSQLTailwind CSSREST APIsWebSocketsPythonDjangoRedisSQLKVS3R2DockerNext.jsReactTypeScriptNode.jsPostgreSQLTailwind CSSREST APIsWebSocketsPythonDjangoRedisSQLKVS3R2DockerNext.jsReactTypeScriptNode.jsPostgreSQLTailwind CSSREST APIsWebSocketsPythonDjangoRedisSQLKVS3R2DockerNext.jsReactTypeScriptNode.jsPostgreSQLTailwind CSSREST APIsWebSocketsPythonDjangoRedisSQLKVS3R2DockerNext.jsReactTypeScriptNode.jsPostgreSQLTailwind CSSREST APIsWebSocketsPythonDjangoRedisSQLKVS3R2Docker

Selected Work

Projects

Experience

Work Experience

Freelance Full-Stack Developer

Independent, remote (Upwork & direct clients)

2024 — Present

Next.jsDjangoFastAPICloudflare Workers/D1/KV/R2PostgreSQLStripe

Went independent to work directly with clients on SaaS platforms, mobile apps, and marketing sites, taking full responsibility for each project from planning to launch.
Built SceneYard, a subscription SaaS platform for motion designers. Planned the stack and built the full product, now at 20,000+ signups and 300+ indexed pages.
Built Castform, an AI voice agent SaaS platform, owning the architecture and full-stack development.
Built the backend for My Story, a mobile app published on Google Play.
Delivered marketing and corporate websites for clients across Egypt, Iraq, and the wider Middle East, including EMAAL Business Space, Aldamen United, and Al Saif Law Firm, Iraq's oldest law firm.
Comfortable taking full ownership of a project: architecture, build, launch, and staying involved afterward to track performance and growth.

Full-Stack Developer

Senu Studio — creative agency

Earlier

Worked as a full-stack developer at Senu Studio, a creative agency building sites for marketing and business clients.
Built and shipped 25+ marketing websites, most running on custom CMS setups so clients could manage their own content without touching code.
Added advanced features tailored to each client: dynamic portfolio systems, lead capture flows, booking systems, and custom admin dashboards.
Built senu.studio itself, the agency's own site, which has grown to 2M+ visits.
Owned each project end to end: frontend, backend, deployment, and SEO, working directly with clients from the first call to launch.

Testimonials

Client Feedbacks

“Karim built SceneYard from the ground up, the whole platform, payments, emails, SEO, everything. He just handled it, no back and forth needed. We went from 1 page to over 300 indexed pages and hit 20k+ signups, a lot of it from organic search he set up. Solid dev, easy to work with. Would work with him again."”

“Karim built Castform pretty much solo, the whole AI voice agent platform. Next.js frontend, Cloudflare backend, the Vapi voice pipeline, Twilio numbers, calendar integration, Stripe, all of it working together smooth. Didn't have to explain much either, he just gets it and moves. If you need someone who can own a project end to end, he's your guy.”

“Karim rebuilt our site and got it right. Clean, fast, professional, exactly what a firm with our name needs.”

“Karim delivered a website that reflects who we are, a company handling projects worth tens of millions across the Middle East. The design is premium, the performance is smooth, and it communicates our portfolio the way it deserves to be communicated. He worked independently and delivered exactly what we needed, without us having to oversee every step. A dependable developer, and the result speaks for itself.”

“Karim built our site and it just works. Clean design, fast, and it actually pulls people in, we're at 2M+ visits now. He handled the whole thing, the portfolio system, the lead gen, the SEO, all of it. No hand holding needed. Dude just delivers.”

“"I brought Karim in to help with EMAAL Business Space, one of my bigger clients, a leading Iraqi corporate group. It's not a small site, it serves major business figures and needed to look and function like it. Karim built a custom dashboard for managing the blog and their events, including the Iraq Business Summit, without me needing to oversee every detail. He delivered exactly what the client needed, professional, reliable work. I'd bring him in again for clients at this level”

“Karim rebuilt our site and got it right. Clean, fast, professional, exactly what a firm with our name needs.”

Education

Learning Path

B.Sc. Computer & Information Science

Mansoura University

2020 – 2024

Reading & Always Learning

I learn by building, but I also learn by reading — a lot. My shelves (and tabs) are full of system design, databases, algorithms, backend patterns, networking, and developer craft. Books that shaped how I think include Grokking Algorithms by Aditya Y. Bhargava, The Object-Oriented Thought Process by Matt Weisfeld, Head First Design Patterns by Eric Freeman & Elisabeth Robson, Operating Systems: Three Easy Pieces by Remzi & Andrea Arpaci-Dusseau, CMU Database Systems by Carnegie Mellon, Designing Data-Intensive Applications by Martin Kleppmann, Clean Code by Robert C. Martin, The Pragmatic Programmer by Andrew Hunt & David Thomas, Refactoring by Martin Fowler, System Design Interview by Alex Xu, Computer Networking: A Top-Down Approach by Kurose & Ross, and Docker Deep Dive by Nigel Poulton. On top of that, I have gone deep into Cloudflare Workers, Next.js, FastAPI, PostgreSQL, Redis, Docker, Stripe, and modern web architecture through docs, courses, and shipping real products.

I Build Websites That Scale & Make Sales